Impact of Finasteride and Dutasteride in Beard Thickness in Men with Androgenetic Alopecia: A 453-Patient Retrospective Trial

    July 2024 in “ Actas Dermo-Sifiliográficas ”
    Óscar M. Moreno‐Arrones, David Saceda‐Corralo, ­Daniel ­Ortega‐Quijano, Ángela Hermosa‐Gelbard, Sergio Vañó‐Galván
    TLDR Finasteride and dutasteride do not significantly change beard thickness in men.
    This retrospective study involving 453 male patients with androgenetic alopecia (AGA) assessed the impact of 5-alpha-reductase inhibitors (5ARIs), specifically finasteride and dutasteride, on beard thickness. Patients, with a mean age of 24.6 years, were treated with either finasteride 1 mg daily (100 patients) or dutasteride 0.5 mg daily (353 patients) for at least 12 months. Results showed that 96.9% of patients experienced no change in beard thickness, 1.1% had a decrease, and 1.9% had an increase. The study concludes that 5ARIs do not significantly affect beard thickness in men with established beards.
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